BS 848-6(2003) : 2003
Current
The latest, up-to-date edition.
FANS FOR GENERAL PURPOSES - METHOD OF MEASUREMENT OF FAN VIBRATION
23-11-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Mounting of test rig
5.1 General
5.2 Resilient base mounting of fan
5.3 Mounting of fans with resilient elastic rope
5.4 Stiff mounting of fans
5.5 Flexible connections
6 Measuring equipment
6.1 General
6.2 Calibration
6.3 Instrument system
6.4 Transducers
6.5 Piezoelectric accelerometers
6.6 Preamplifiers
6.7 Analysers
6.8 Indicators
6.9 Outputs
7 Transducer attachment
7.1 General
7.2 Attachments
8 Selection of measuring positions
8.1 General
8.2 Mounting on combination base frame
8.3 Mounting of transducers for other fans
9 Test environment and operating data
10 Procedure
10.1 General
10.2 Measurement parameters
10.3 Frequency analysis
11 Presentation of results
Annex A (informative) - Guide to calculating resilient mount
positions and rigid body natural frequencies
Annex B (informative) - Secondary measurement methods for in situ
testing or quality grading
Annex C (informative) - Recommended measuring positions for machinery
health measurements
Annex D (informative) - Relationship between absolute and decibel
levels
Annex E (informative) - Relationship between vibration magnitude
of single frequency signal
Bibliography
Specifies a method of measuring the vibrational characteristics of fans of all types, except those designed solely for air circulation.
| Committee |
MCE/17
|
| DevelopmentNote |
Also numbered as BS ISO 14695 Supersedes BS 848-6(1989) & 00/713944 DC (06/2003)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Standards | Relationship |
| ISO 14695:2003 | Identical |
| ISO 12499:1999 | Industrial fans — Mechanical safety of fans — Guarding |
| ISO 5802:2001 | Industrial fans — Performance testing in situ |
| ISO 14694:2003 | Industrial fans — Specifications for balance quality and vibration levels |
| ISO 7919-1:1996 | Mechanical vibration of non-reciprocating machines — Measurements on rotating shafts and evaluation criteria — Part 1: General guidelines |
| ISO 1940-1:2003 | Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerances |
| ISO 13351:2009 | Fans — Dimensions |
| ISO 13350:2015 | Fans — Performance testing of jet fans |
| ISO 5801:2017 | Fans — Performance testing using standardized airways |
| ISO 2041:2009 | Mechanical vibration, shock and condition monitoring — Vocabulary |
| IEC 60034-14:2003+AMD1:2007 CSV | Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity |
| ISO 1683:2015 | Acoustics — Preferred reference values for acoustical and vibratory levels |
| ISO 2373:1987 | Mechanical vibration of certain rotating electrical machinery with shaft heights between 80 and 400 mm — Measurement and evaluation of the vibration severity |
| ISO 2954:2012 | Mechanical vibration of rotating and reciprocating machinery — Requirements for instruments for measuring vibration severity |
| ISO 5348:1998 | Mechanical vibration and shock — Mechanical mounting of accelerometers |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
| ISO 13349:2010 | Fans — Vocabulary and definitions of categories |
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